(19)

(11)

EP 3 931 472 A1

(12)

(43) Date of publication: 05.01.2022 Bulletin 2022/01 (21) Application number: 20762686.2 (22) Date of filing: 27.02.2020

(51) International Patent Classification (IPC):  F16J 15/46(2006.01) F16L 17/02(2006.01) F16J 15/54(2006.01) F16L 17/10(2006.01) (52) Cooperative Patent Classification (CPC): F16J 15/184; F16J 15/185 (86) International application number: PCT/AU2020/050180 (87) International publication number: WO 2020/172718 (03.09.2020 Gazette 2020/36)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 27.02.2019 AU 2019900635 (71) Applicant: Doyle, Roger Parmelia WA 6167 (AU)	(72) Inventor: Doyle, Roger Parmelia WA 6167 (AU) (74) Representative: Hindles Limited  Clarence House 131-135 George Street Edinburgh, EH2 4JS Edinburgh, EH2 4JS (GB)